Sindo Ferry sails seven routes between eight ports in Singapore and Indonesia, mostly HarbourFront Centre, Batam Centre and Tanah Merah. From HarbourFront Centre: Batam Centre, Sekupang, Tanjung Balai Karimun, Gold Coast Bengkong and Waterfront City. From Batam Centre: Tanah Merah. From Tanah Merah: Tanjung Pinang.